Chapter 74. Analysis of Local in Situ Strain in Ceramics and Ceramic Matrix Composites

  1. John B. Wachtman Jr.
  1. Renee M. Kent and
  2. Norman L. Hecht

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314180.ch74

Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 7/8

Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 7/8

How to Cite

Kent, R. M. and Hecht, N. L. (2008) Analysis of Local in Situ Strain in Ceramics and Ceramic Matrix Composites, in Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314180.ch74

Author Information

  1. University of Dayton Research Institute Dayton, Ohio 45469

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1993

ISBN Information

Print ISBN: 9780470375266

Online ISBN: 9780470314180

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Keywords:

  • nonintrusive;
  • ceramics;
  • relaxation;
  • calcium alumino-silicate;
  • flexural strength

Summary

A nonintrusive technique using scanning laser acoustic microscopy (SLAM) for measuring the localized strain of ceramics was developed for a LAS monolithic, a SiC/LAS monofilament composite, and a SiC/CAS unidirectionally reinforced composite. The localized strain analysis was used to assess residual stresses due to processing. A correlation between the relaxation stress and the fracture behavior of each material was found and shown to correspond to matrix micro-cracking and secondary cracks.